/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 */

/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/*
 * Modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */

// Default security policy file.
// On startup, BootStrap reads environment and adds additional permissions
// for configured paths and network binding to these.

//// SecurityManager impl:
//// Must have all permissions to properly perform access checks

grant codeBase "${codebase.opensearch-secure-sm}" {
  permission java.security.AllPermission;
};

//// Opensearch core:
//// These are only allowed inside the server jar, not in plugins
grant codeBase "${codebase.opensearch}" {
  // needed for loading plugins which may expect the context class loader to be set
  permission java.lang.RuntimePermission "setContextClassLoader";
  // needed for SPI class loading
  permission java.lang.RuntimePermission "accessDeclaredMembers";
};

//// Very special jar permissions:
//// These are dangerous permissions that we don't want to grant to everything.

grant codeBase "${codebase.lucene-core}" {
  // needed to allow MMapDirectory's "unmap hack" (die unmap hack, die)
  // java 8 package
  permission java.lang.RuntimePermission "accessClassInPackage.sun.misc";
  // java 9 "package"
  permission java.lang.RuntimePermission "accessClassInPackage.jdk.internal.ref";
  permission java.lang.reflect.ReflectPermission "suppressAccessChecks";
  // NOTE: also needed for RAMUsageEstimator size calculations
  permission java.lang.RuntimePermission "accessDeclaredMembers";
};

grant codeBase "${codebase.lucene-misc}" {
  // needed to allow shard shrinking to use hard-links if possible via lucenes HardlinkCopyDirectoryWrapper
  permission java.nio.file.LinkPermission "hard";
};

grant codeBase "${codebase.opensearch-plugin-classloader}" {
  // needed to create the classloader which allows plugins to extend other plugins
  permission java.lang.RuntimePermission "createClassLoader";
};

grant codeBase "${codebase.jna}" {
  // for registering native methods
  permission java.lang.RuntimePermission "accessDeclaredMembers";
};

//// Everything else:

grant {
  // needed by vendored Guice
  permission java.lang.RuntimePermission "accessClassInPackage.jdk.internal.vm.annotation";

  // checked by scripting engines, and before hacks and other issues in
  // third party code, to safeguard these against unprivileged code like scripts.
  permission org.opensearch.SpecialPermission;

  // Allow host/ip name service lookups
  permission java.net.SocketPermission "*", "resolve";

  // Allow reading and setting socket keepalive options
  permission jdk.net.NetworkPermission "getOption.TCP_KEEPIDLE";
  permission jdk.net.NetworkPermission "setOption.TCP_KEEPIDLE";
  permission jdk.net.NetworkPermission "getOption.TCP_KEEPINTERVAL";
  permission jdk.net.NetworkPermission "setOption.TCP_KEEPINTERVAL";
  permission jdk.net.NetworkPermission "getOption.TCP_KEEPCOUNT";
  permission jdk.net.NetworkPermission "setOption.TCP_KEEPCOUNT";

  // Allow read access to all system properties
  permission java.util.PropertyPermission "*", "read";

  // TODO: clean all these property writes up, and don't allow any more in. these are all bogus!

  // LuceneTestCase randomization (locale/timezone/cpus/ssd)
  // TODO: put these in doPrivileged and move these to test-framework.policy
  permission java.util.PropertyPermission "user.language", "write";
  permission java.util.PropertyPermission "user.timezone", "write";
  permission java.util.PropertyPermission "lucene.cms.override_core_count", "write";
  permission java.util.PropertyPermission "lucene.cms.override_spins", "write";
  // messiness in LuceneTestCase: do the above, or clean this up, or simply allow to fail if its denied
  permission java.util.PropertyPermission "solr.solr.home", "write";
  permission java.util.PropertyPermission "solr.data.dir", "write";
  permission java.util.PropertyPermission "solr.directoryFactory", "write";

  // set by OpenSearchTestCase to improve test reproducibility
  // TODO: set this with gradle or some other way that repros with seed?
  permission java.util.PropertyPermission "processors.override", "write";

  // needed for feature flags
  permission java.util.PropertyPermission "opensearch.experimental.feature.*", "write";

  // TODO: these simply trigger a noisy warning if its unable to clear the properties
  // fix that in randomizedtesting
  permission java.util.PropertyPermission "junit4.childvm.count", "write";
  permission java.util.PropertyPermission "junit4.childvm.id", "write";

  // needed by Settings
  permission java.lang.RuntimePermission "getenv.*";

  // thread permission for the same thread group and ancestor groups
  // (this logic is more strict than the JDK, see SecureSM)
  permission java.lang.RuntimePermission "modifyThread";
  permission java.lang.RuntimePermission "modifyThreadGroup";

  // needed by ExceptionSerializationTests and RestTestCase for
  // some hackish things they do. otherwise only needed by groovy
  // (TODO: clean this up?)
  permission java.lang.RuntimePermission "getProtectionDomain";

  // needed by HotThreads and potentially more
  // otherwise can be provided only to test libraries
  permission java.lang.RuntimePermission "getStackTrace";

  // needed by JMX instead of getFileSystemAttributes, seems like a bug...
  permission java.lang.RuntimePermission "getFileStoreAttributes";

  // needed for jimfs and NewPathForShardsTests
  // otherwise can be provided only to test libraries
  permission java.lang.RuntimePermission "fileSystemProvider";

  // needed by jvminfo for monitoring the jvm
  permission java.lang.management.ManagementPermission "monitor";

  // needed by JDKESLoggerTests
  permission java.util.logging.LoggingPermission "control";

  // load averages on Linux
  permission java.io.FilePermission "/proc/loadavg", "read";

  // read max virtual memory areas
  permission java.io.FilePermission "/proc/sys/vm/max_map_count", "read";

  // OS release on Linux
  permission java.io.FilePermission "/etc/os-release", "read";
  permission java.io.FilePermission "/usr/lib/os-release", "read";
  permission java.io.FilePermission "/etc/system-release", "read";

  // io stats on Linux
  permission java.io.FilePermission "/proc/self/mountinfo", "read";
  permission java.io.FilePermission "/proc/diskstats", "read";

  // control group stats on Linux
  permission java.io.FilePermission "/proc/self/cgroup", "read";
  permission java.io.FilePermission "/sys/fs/cgroup/cpu", "read";
  permission java.io.FilePermission "/sys/fs/cgroup/cpu/-", "read";
  permission java.io.FilePermission "/sys/fs/cgroup/cpuacct", "read";
  permission java.io.FilePermission "/sys/fs/cgroup/cpuacct/-", "read";
  permission java.io.FilePermission "/sys/fs/cgroup/memory", "read";
  permission java.io.FilePermission "/sys/fs/cgroup/memory/-", "read";

};
